Exterior view of Gas & Electric Company building, 15th (Fifteenth) & northwest corner of Champa, Denver, Colorado; opened November 10, 1910 with dazzling display of 10,000 light bulbs illuminating building; Public Service Company moved to another...

Nighttime rooftop view the Gas and Electric Building at 15th (Fifteenth) and Champa Streets in downtown Denver, Colorado. The building is decorated with light bulbs and electric signs that read: "Use a Gas Water Heater Use [?] Coke" and "The...

Rooftop view of the Gas and Electric Building at 15th (Fifteenth) and Champa Streets in downtown Denver, Colorado. The building is decorated with light bulbs and has electric signs that read "Use a Gas Water Heater Us[e Gen]uine [...]," "Good News...

Nighttime rooftop view of the Gas and Electric building at 15th (Fifteenth) and Champa Streets in downtown Denver, Colorado. The building is decorated with light bulbs and electric signs that read: "Get a Gas Water Heater When You Shut Down the...